DrVirgo
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35. A 48-year-old man comes to his physician because his wife noticed that his right pupil is "small." Physical examination shows that the right pupil is constricted and does not react to light. His left pupil is normal. These findings are most likely due to a lesion involving which of the following structures on the right?
A) Cervical spinal cord
B) Frontal eye fields
C) Lateral geniculate nucleus
D) Optic tract
E) Visual cortex
D??
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| DrVirgo
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Anyone know what it is?
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| babli
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A Horner's syndrome.
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| robin082006
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agree, A
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| DrVirgo
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 OH! Thats right... Stupid mistake on my part.
 Thanks again.
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| DrVirgo
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Horners: Ptosis, Miosis, Anhydrosis.
This patient only presented with Miosis... can we still assume Horners? Can anything else cause miosis (opiods, what else?)
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| Harry Potter
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Physiological anisocoria-
A horner pupil can never be unreactive to light (may be less responsive)
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| Harry Potter
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Physiological anisocoria-
A horner pupil can never be unreactive to light (may be less responsive)
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| waqastariq
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dont know 
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| plastic_girl
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http://www.prep4usmle.com/forum/thread/27078
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| waqastariq
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well I just wanna ask that if the pupil is constricted...
it must react to light reflex...although the reflex is not visible much..but it's there...
anyway..the only possibilty out of the choices seems to be A
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| nadiabarati
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why not D?
In horner syndrome light reflex is off?!!
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| DrHokis
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I dont see why this is horners at all.
any thoughts at all?
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| study_ing
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question was just there 2 posts ago
http://www.prep4usmle.com/forum/thread/35189
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